Calendar



FIG. 1 is a front elevational view of a calendar showing my new design.

FIG. 2 is a left side elevation of the calendar shown in FIG. 1.

FIG. 3 is a top plan view of said calendar.

FIG. 4 is a rear elevational view of said calendar.

FIG. 5 is another side elevation view of said calendar.

FIG. 6 is a bottom plan view of said calendar. 

The ornamental design for a calendar, substantially as shown and described. 